Comment on

• Growth hormone (GH)-releasing peptide-6 requires endogenous hypothalamic GH-releasing hormone for maximal GH stimulation.

  Pandya N, DeMott-Friberg R, Bowers CY, Barkan AL, Jaffe CA. Pandya N, et al. J Clin Endocrinol Metab. 1998 Apr;83(4):1186-9. doi: 10.1210/jcem.83.4.4711. J Clin Endocrinol Metab. 1998. PMID: 9543138 Clinical Trial.
• The growth hormone secretagogue hexarelin stimulates the hypothalamo-pituitary-adrenal axis via arginine vasopressin.

  Korbonits M, Kaltsas G, Perry LA, Putignano P, Grossman AB, Besser GM, Trainer PJ. Korbonits M, et al. J Clin Endocrinol Metab. 1999 Jul;84(7):2489-95. doi: 10.1210/jcem.84.7.5811. J Clin Endocrinol Metab. 1999. PMID: 10404825 Clinical Trial.
• Ghrelin strongly stimulates growth hormone release in humans.

  Takaya K, Ariyasu H, Kanamoto N, Iwakura H, Yoshimoto A, Harada M, Mori K, Komatsu Y, Usui T, Shimatsu A, Ogawa Y, Hosoda K, Akamizu T, Kojima M, Kangawa K, Nakao K. Takaya K, et al. J Clin Endocrinol Metab. 2000 Dec;85(12):4908-11. doi: 10.1210/jcem.85.12.7167. J Clin Endocrinol Metab. 2000. PMID: 11134161 Clinical Trial.